Evaluation of static load test on instrumented bored pile

The recorded load, settlement and time data provides information on the possible problems or unexpected occurrences during interpretation of the test results. Careful scrutinizing of instrumentations’ recorded data helps to validate the assumed design parameters used. Continuation of the load test u...

Full description

Saved in:
Bibliographic Details
Main Author: Quah, Wee Keong.
Other Authors: Wong Kai Sin
Format: Final Year Project
Language:English
Published: 2010
Subjects:
Online Access:http://hdl.handle.net/10356/40038
Tags: Add Tag
No Tags, Be the first to tag this record!
Institution: Nanyang Technological University
Language: English
id sg-ntu-dr.10356-40038
record_format dspace
spelling sg-ntu-dr.10356-400382023-03-03T17:24:10Z Evaluation of static load test on instrumented bored pile Quah, Wee Keong. Wong Kai Sin School of Civil and Environmental Engineering DRNTU::Engineering::Civil engineering::Geotechnical The recorded load, settlement and time data provides information on the possible problems or unexpected occurrences during interpretation of the test results. Careful scrutinizing of instrumentations’ recorded data helps to validate the assumed design parameters used. Continuation of the load test until ultimate resistance is reached and combining the test result with basic soil mechanics principles will also help to optimize information about the test pile. From the analysis of the case studies, one can observe computed loads from the load distributions are not linearly proportional to the measured strains and thus will vary with depth. Secant modulus of a concrete can vary within a wide range and is a function of imposed load. Over large stress range imposed during the test, differences between the initial and final tangent modulus for the pile material can be substantial. The load distribution curves also allow one to obtain the mobilized resistances of the pile which can be further validated through comparison with SPT-N values from the borehole logs. Axial deformation of the pile also can be measured through use of tell-tale rod extensometers as they are able to provide a crude approximation of the pile’s shaft adhesion and base resistance and such estimation should not be used in the analysis due to their high unreliability. Bachelor of Engineering (Civil) 2010-06-09T07:39:40Z 2010-06-09T07:39:40Z 2010 2010 Final Year Project (FYP) http://hdl.handle.net/10356/40038 en Nanyang Technological University 200 p. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic DRNTU::Engineering::Civil engineering::Geotechnical
spellingShingle DRNTU::Engineering::Civil engineering::Geotechnical
Quah, Wee Keong.
Evaluation of static load test on instrumented bored pile
description The recorded load, settlement and time data provides information on the possible problems or unexpected occurrences during interpretation of the test results. Careful scrutinizing of instrumentations’ recorded data helps to validate the assumed design parameters used. Continuation of the load test until ultimate resistance is reached and combining the test result with basic soil mechanics principles will also help to optimize information about the test pile. From the analysis of the case studies, one can observe computed loads from the load distributions are not linearly proportional to the measured strains and thus will vary with depth. Secant modulus of a concrete can vary within a wide range and is a function of imposed load. Over large stress range imposed during the test, differences between the initial and final tangent modulus for the pile material can be substantial. The load distribution curves also allow one to obtain the mobilized resistances of the pile which can be further validated through comparison with SPT-N values from the borehole logs. Axial deformation of the pile also can be measured through use of tell-tale rod extensometers as they are able to provide a crude approximation of the pile’s shaft adhesion and base resistance and such estimation should not be used in the analysis due to their high unreliability.
author2 Wong Kai Sin
author_facet Wong Kai Sin
Quah, Wee Keong.
format Final Year Project
author Quah, Wee Keong.
author_sort Quah, Wee Keong.
title Evaluation of static load test on instrumented bored pile
title_short Evaluation of static load test on instrumented bored pile
title_full Evaluation of static load test on instrumented bored pile
title_fullStr Evaluation of static load test on instrumented bored pile
title_full_unstemmed Evaluation of static load test on instrumented bored pile
title_sort evaluation of static load test on instrumented bored pile
publishDate 2010
url http://hdl.handle.net/10356/40038
_version_ 1759857719594975232